/media/sandbox/xtools/avr-dev/build/avr/bin/avr-gcc -g -Wall -O2 -mmcu=at43usb320    -c -o main.o main.c
In file included from main.c:20:
/media/sandbox/xtools/avr-dev/build/avr/lib/gcc/avr/3.4.4/../../../../avr/include/avr/signal.h:36:2: warning: #warning "This header file is obsolete.  Use <avr/interrupt.h>."
main.c:55:4: #error "Don't know what kind of MCU you are compiling for"
main.c: In function `__vector_6':
main.c:86: error: `OCR' undeclared (first use in this function)
main.c:86: error: (Each undeclared identifier is reported only once
main.c:86: error: for each function it appears in.)
main.c: In function `ioinit':
main.c:99: error: `OCR' undeclared (first use in this function)
main.c:102: error: `DDROC' undeclared (first use in this function)
main.c:102: error: `OC1' undeclared (first use in this function)
main.c:104: warning: implicit declaration of function `timer_enable_int'
make: *** [main.o] Error 1